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https://issues.apache.org/jira/browse/HBASE-7857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell closed HBASE-7857.
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> Sub-region management
> ---------------------
>
> Key: HBASE-7857
> URL: https://issues.apache.org/jira/browse/HBASE-7857
> Project: HBase
> Issue Type: New Feature
> Reporter: Ted Yu
> Priority: Major
>
> Sub-region provides a light weight management below region level.
> Matt Corgan has a nice summary of the relationship between region size and
> number of regions on region server:
> https://issues.apache.org/jira/browse/HBASE-7667?focusedCommentId=13575024&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13575024
> HBASE-7667 proposed stripe compaction. However, to fully achieve fine-grained
> management, more components should participate:
> * memstore flush should ideally have knowledge about what makes stripe
> compaction work efficiently
> * we need to figure out where to store sub-region boundary information so
> that components have easy access. Boundary information should sustain after
> region moves from one server to another.
> Since HBASE-7667 focuses on compaction aspect, this JIRA discusses sub-region
> management in other components so that we better understand the benefits and
> complexities.
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